Last weekend my 7.5yr old Rocky & I competed in the US Canine Biathlon in Alabama. It is a very grueling 4.5 mile mud run with 80+ obstacles that you run with your dog. This was our 2nd year attending this event and based on prior experience I expected him to be sore after the event; so I brought the benefab coat with me. About 30 mins after we completed the course and we rested, Rocky started to feel sore __ slight limping that would _work itself out_ after a few minutes of walking. I put the coat on him for about the next 6 hours. I took it off overnight & put it back on him in the morning for about 3 hours. I was so surprised that after wearing the coat and taking a couple of Canine Active anti-inflammatory pills Rocky was NEVER sore. No limping, no sore joints, NOTHING!!! This coat is AMAZING!!! I am a believer.